１９９７年世界硅藻土总产量初估为１４１万ｔ，与去年持平，其中美国年内硅藻土产量为７０．５万ｔ占世界总产量的一半，比上年产量６９．８万ｔ增长１％。其余主要生产国的年产量均在１０万ｔ以内，如丹麦９．６万ｔ，法国８．５万ｔ，韩国８万ｔ，墨西哥５．６万ｔ等。美国 The total production of diatomite in the world was initially estimated at 1.41 million tons in 1997, unchanged from last year. Among them, the annual output of diatomite in the United States was 705,000 tons, accounting for half of the world’s total output, an increase of 698,000 tons over the previous year. %. The remaining major producing countries, the annual output is less than 100,000 t, such as Denmark 96,000 t, France 85,000 t, South Korea 80,000 t, Mexico 56,000 t and so on. United States